javascript - Function not defined using onkeyup for table search -

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• why simple jsfiddle not work? 5 answers

using similar functionality table search @ w3schools, i'm getting error function used onkeyup not defined on input element. name of function same, shouldn't issue.

html

<div class="row"> <div class="container form-container">   <div class="col-lg-12 col-md-12 col-sm-12 col-xs-12 search-form">  <input type="text" id="search" onkeyup="tablesearch()" placeholder="search names.." title="search name, practice area or location">       </div> </div>  <div class="results">   <div class="col-lg-12">     <div id="no-more-tables">         <table id="results" class="order-table col-md-12 cf">             <thead class="cf">                 <tr>                     <th class="numeric">field 1</th>                     <th class="numeric">field 2</th>                     <th class="numeric">field 3</th>                     <th class="numeric">field 4</th>                     <th class="numeric">field 5</th>                 </tr>             </thead>             <tbody>                  <tr>                     <td data-title="" class="name"><a href="user-1">user 1</a><a href="tel:(407) 420-1414"><span class="phone"><i class="fa fa-phone phone"></i></span></a><a href="mailto:user1@site.com"><span class="email"><i class="fa fa-envelope-o email"></i></span></a></td>                     <td data-title="location"></td>                     <td data-title="practice area" class=""></td>                     <td data-title="email" class="numeric desktop-only"><a href="mailto:user1@site.com">user1@site.com</a></td>             <td data-title="phone" class="numeric desktop-only"><a href="tel:(111) 111-1111">(111) 111-1111</a></td>                 </tr>                  <tr>                     <td data-title="" class="name"><a href="user-2">user 2</a><a href="tel:1111111111"><span class="phone"><i class="fa fa-phone phone"></i></span></a><a href="mailto:user2@site.com"><span class="email"><i class="fa fa-envelope-o email"></i></span></a></td>                     <td data-title="location"></td>                     <td data-title="practice area" class=""></td>                     <td data-title="email" class="numeric desktop-only"><a href="mailto:user2@site.com">user2@site.com</a></td>             <td data-title="phone" class="numeric desktop-only"><a href="tel:1111111111">1111111111</a></td>                 </tr>             </tbody>         </table>     </div> </div> </div> </div> 

javascript

function tablesearch() {   var input, filter, table, tr, td, i;   input = document.getelementbyid("search");   filter = input.value.touppercase();   table = document.getelementbyid("results");   tr = table.getelementsbytagname("tr");     (i = 0; < tr.length; i++) {      tds = tr[i].getelementsbytagname("td");     var found = false;     //---second loop goes on tds in tr ---can modified required go on tds     (j = 0; j < tds.length; j++) {       td = tds[j];       if (td) {         if (td.innerhtml.touppercase().indexof(filter) > -1) {           found = true;           break;         }       }     }      if (found)       tr[i].style.display = "";     else       tr[i].style.display = "none";    } } 

jsfiddle: link

your method tablesearch in onload load-type in fiddle's javascript options, hence not in global scope.

check updated fiddle's javascript options. have selected 'wrap in head' put in global scope accessible event handler.